package com.project.dao.impl;

import java.sql.*;

/**
 * DAO的父类
 */
public class BaseDao {
    /**连接*/
    protected Connection con;
    /**SQL语句执行对象*/
    protected PreparedStatement ps;
    /**结果集*/
    protected ResultSet rs;

    public void setConnection(){
        try {
            Class.forName("com.mysql.jdbc.Driver");
            con = DriverManager.getConnection(
                    "jdbc:mysql://localhost:6789/speakDB?characterEncoding=utf-8",
                    "root","lovo");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void closeConnection(){
        try {
            if(rs != null) {
                rs.close();
            }
            if(ps != null) {
                ps.close();
            }
            if(con != null) {
                con.close();
            }

        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
    }
}
